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Evaluation of behavioral changes induced by a first step of domestication or selection for growth in the European sea bass (Dicentrarchus labrax): A self-feeding approach under repeated acute stress ArchiMer
Millot, Sandie; Pean, Samuel; Leguay, Didier; Vergnet, Alain; Chatain, Beatrice; Begout, Marie-laure.
Among other strategies to improve fish welfare in rearing environment, domestication and/or selective breeding was proposed to minimize fish responsiveness to husbandry practices. To verify this hypothesis on a recently domesticated specie, the sea bass, Dicentrarchus labrax, L., an experiment was realized, using four populations differing according to their level of domestication or selection: one population produced from wild parents (Wild), one population produced from parents domesticated for one generation (Domesticated) and two produced from parents selected for growth for one generation (Selected A and Selected B). The experiment was carried out over 91 days with 600 fish (50 fish per tank, 150 fish per population). After a control period, the fish...
Tipo: Text Palavras-chave: Feed intake; Feeding rhythm; Specific growth rate; Adaptation capacities; Welfare.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00011/12254/9030.pdf
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Physiological and biochemical changes attenuate the effects of drought on the Cerrado species Vatairea macrocarpa (Benth.) Ducke. Repositório Alice
VIEIRA, E. A.; SILVA, M das G.; MORO, C. F.; LAURA, V. A..
Drought is considered the main abiotic stress because it influences the distribution of plant species and limits the productivity of ecosystems. The aim of this study was to evaluate the effects of drought on physiological and biochemical parameters during the initial development of Vatairea macrocarpa, a native cerrado species. Plants were subjected to daily watering (control); suppression of watering during 90 days with field capacity (fc) 50% and 25% and then followed by rewatering. Relative leaf water content (RWC), gas exchange, photosynthetic pigments content, carbohydrate and amino acids content, antioxidant activities and growth were recorded. The RWC decreased according to the soil water restriction, causing reduction in stomatal conductance and...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Vatairea macrocarpa; Cerrado; Water deficit plant; Photosynthesis; Sucrose; Amino acids; Stomatal resistance; Specific growth rate; Raffinose; Osmoregulation.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1079686
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Physiological mechanisms underlying a trade-off between growth rate and tolerance of feed deprivation in the European sea bass (Dicentrarchus labrax) ArchiMer
Dupont-prinet, A.; Chatain, Beatrice; Grima, L.; Vandeputte, Marc; Claireaux, Guy; Mckenzie, David.
The specific growth rate (SGR) of a cohort of 2000 tagged juvenile European sea bass was measured in a common tank, during two sequential cycles comprising three-weeks feed deprivation followed by three-weeks ad libitum re-feeding. After correction for initial size at age as fork length, there was a direct correlation between negative SGR (rate of mass loss) during feed deprivation and positive SGR (rate of compensatory growth) during re-feeding (Spearman rank correlation R=0.388, P=0.000002). Following a period of rearing under standard culture conditions, individuals representing 'high growth' phenotypes (GP) and 'high tolerance of feed deprivation' phenotypes (DP) were selected from either end of the SGR spectrum. Static and swimming respirometry could...
Tipo: Text Palavras-chave: Aerobic scope; Compensatory growth; Specific dynamic action; Specific growth rate; Standard metabolic rate.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00002/11283/8517.pdf
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Physiological mechanisms underlying a trade-off between growth rate and tolerance of feed deprivation in the European sea bass (Dicentrarchus labrax) Inra
Dupont-Prinet, A.; Chatain, B.; Grima, L.; Vandeputte, M.; Claireaux, G; McKenzie, D. J..
The specific growth rate (SGR) of a cohort of 2000 tagged juvenile European sea bass was measured in a common tank, duringtwo sequential cycles comprising three-weeks feed deprivation followed by three-weeks ad libitum re-feeding. After correction forinitial size at age as fork length, there was a direct correlation between negative SGR (rate of mass loss) during feed deprivationand positive SGR (rate of compensatory growth) during re-feeding (Spearman rank correlation R 0.388, P 0.000002). Following aperiod of rearing under standard culture conditions, individuals representing ‘high growth’ phenotypes (GP) and ‘high toleranceof feed deprivation’ phenotypes (DP) were selected from either end of the SGR spectrum. Static and swimming respirometry couldnot...
Tipo: Journal Article Palavras-chave:  aerobic scope; Compensatory growth; Specific dynamic action; Specific growth rate; Standard metabolic rate.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2011a23c99d9&uri=/notices/prodinra1/2011/04/
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Self-feeding behavior changes induced by a first and a second generation of domestication or selection for growth in the European sea bass, Dicentrarchus labrax ArchiMer
Millot, Sandie; Pean, Samuel; Chatain, Beatrice; Begout, Marie-laure.
Among the strategies that can be used to improve fish welfare in a rearing environment, domestication and/or selective breeding was proposed to minimize fish responsiveness to husbandry practices. To verify this hypothesis on a recently domesticated species, the sea bass Dicentrarchus labrax, two experiments were realized, each using two populations differing according to their level of domestication or selection. For the first experiment, we used one population produced from wild parents (Wild; initial body mass: 106 +/- 3 g), and one population from parents selected for growth for one generation (Selected 1; initial body mass: 129 +/- 4 g). For the second experiment, we used one population produced from parents domesticated for two generations...
Tipo: Text Palavras-chave: Feed intake; Feeding rhythm; Specific growth rate; Adaptation capacities; Fish welfare.
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00035/14604/11924.pdf
Registros recuperados: 5
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